Enervest, Taiwanese partner advance sub-5 MW solar, storage portfolio

Australian energy developer Enervest plans to accelerate the delivery of a 50 MW portfolio of sub-5 MW solar and battery projects across New South Wales and Victoria after securing the support of Taiwan-headquartered renewables developer Billion Watts.

nervest has entered into a joint development agreement with Billion Watts, a subsidiary of Taiwan-headquartered Billion Electric Group, to advance the development of a 50 MW / 200 MWh portfolio of sub-5 MW hybrid solar and storage and standalone battery projects in New South Wales and Victoria.

The partnership will target the development of 10 strategically located sites connected to distribution networks in both states. Development approvals and Offer to Connect for all 10 sites are expected by June 2027.

Enervest will lead project origination and development activities while Billion Watts, which has supported the commissioning of 532 MW of solar and developed a 308 MW / 817 MWh energy storage EPC and O&M portfolio, will provide development capital and oversee asset strategy and system integration.

Billion Watts Director Elaine Chen said the collaboration with Enervest reflects the increasing demand for distributed energy assets and will capitalise on the advantages of faster network connection pathways and highly diversified revenue models.

Chen said the distributed storage segment is a particularly attractive asset class, offering deployment flexibility and risk diversification that support the development of scalable investment portfolios.

“We see distributed storage as a scalable and essential component of modern power systems, allowing for rapid deployment without exposure to the delays and risks often associated with new transmission infrastructure,” she said, adding that these assets “unlock multiple revenue streams, such as wholesale trading, energy arbitrage, and ancillary services, generating the resilient returns essential for long-term capital allocation.”

Chen also highlighted Australia’s “mature regulatory framework and stable demand,” saying the market is garnering increasing international investor interest.

“Australia presents a highly attractive market with strong policy support, transparent pricing signals, and increasing demand for flexible capacity,” she said.

Enervest Chief Executive Officer Ross Warby said the partnership with Billion Watts confirms the strategic value of the Melbourne-based company’s origination model and the quality of its development pipeline.

“As legacy generation exits the system, distribution-connected batteries are becoming increasingly important to maintaining reliability at the local level,” he said. “They support Distribution Network Service Providers in managing peak demand and alleviating local constraints and strengthening the grid closer to load, while offering faster connection pathways than transmission-scale infrastructure.”

Warby said by developing projects across multiple regions, the newly formed joint venture is building a repeatable model that supports more efficient portfolio delivery at scale, while delivering certainty and long-term resilience for communities and network operators.

“This partnership enables us to scale our sub-5 MW platform in a disciplined and coordinated way, focusing on strategically located sites that deliver measurable value to distribution networks,” he said.